Not everything, look at other laptops and desktop computers.
You have Android and iOS that stick because of this 2 players not competing(they are happy with current market share and Google and Apple are pushing now on other fronts).
With desktop computers we can still replace parts without having to ask approval from someone, we can still install whatever we want and this is because there are more then 2 laptop or desktop suppliers. Also it is not about form factor, yes it is easy to replace parts on a desktop PC but for Apple phones they refuse to give you screens or batteries and they bully people that refurbish parts from broken devices and try to hide repair documentation and software(this is opposite of green)
Apple won't sell you a screen,keyboard or chip to fix your hardware, I am waiting to explain to me how this is very green